no, but we all know how Disney and Feige work. So no need to get any inside scoop to get to a logical conclusion.
Feige is the creative head of the MCU, so he will create his X-Men universe, not Kinberg or other Fox leftovers universe/ideas.
Thats common sense.
and even if Feige wants to do a Gambit movie, its highly unlikely he will be one of the first x-films made by Disney, so Gambit movie would have to wait even more years. and by that time, Tatum will be closer to 40 years old. Do Feige wants a 40 something Remy with a maybe much younger X-Men cast? unlikely. and even less if they sign a 20 something Rogue, when Feige likely would want to pair Gambit with Rogue, as they are one of the most popular Marvel couples ever.
So again, its highly unlikely they use the Tatum script or even Tatum.